US9267671B2 - Releasable optical element - Google Patents

Releasable optical element Download PDF

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Publication number
US9267671B2
US9267671B2 US14/377,270 US201314377270A US9267671B2 US 9267671 B2 US9267671 B2 US 9267671B2 US 201314377270 A US201314377270 A US 201314377270A US 9267671 B2 US9267671 B2 US 9267671B2
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US
United States
Prior art keywords
optical element
cylindrical portion
outer member
inner member
element according
Prior art date
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Active, expires
Application number
US14/377,270
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English (en)
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US20150369456A1 (en
Inventor
Petrus Martinus Creusen
Wouter Petrus Kaandorp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Signify Holding BV
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Koninklijke Philips NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to US14/377,270 priority Critical patent/US9267671B2/en
Assigned to KONINKLIJKE PHILIPS ELECTRONICS N.V. reassignment KONINKLIJKE PHILIPS ELECTRONICS N.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CREUSEN, MARTINUS PETRUS, KAANDORP, WOUTER PETRUS
Publication of US20150369456A1 publication Critical patent/US20150369456A1/en
Application granted granted Critical
Publication of US9267671B2 publication Critical patent/US9267671B2/en
Assigned to PHILIPS LIGHTING HOLDING B.V. reassignment PHILIPS LIGHTING HOLDING B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KONINKLIJKE PHILIPS N.V.
Assigned to SIGNIFY HOLDING B.V. reassignment SIGNIFY HOLDING B.V. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: PHILIPS LIGHTING HOLDING B.V.
Active legal-status Critical Current
Adjusted expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/002—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for interchangeability, i.e. component parts being especially adapted to be replaced by another part with the same or a different function
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/162—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to traction or compression, e.g. coil springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V9/16—
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the current invention relates to an optical element, and to a lighting arrangement comprising such an optical element.
  • Such optical elements are typically screwed or clamped to the lamp holder. Mounting and removal of the optical elements may be done manually by placing the fingers around the optical element or it may require the use of a tool.
  • luminaires may be desirable to arrange luminaires in a recess in the ceiling or wall in which they are mounted in order to provide a low visible profile of the luminaire itself.
  • a general object of the present invention is to provide an improved optical element simplifying mounting and dismounting of the optical element on a lighting module.
  • an optical element for releasable connection to a lighting module, the optical element comprising an outer member having a cylindrical portion, the cylindrical portion having a shoulder portion extending towards a central axis of the cylindrical portion, an inner member having a cylindrical portion at least partially arranged within the cylindrical portion of the outer member.
  • the optical element further comprises at least one deformable member arranged within the cylindrical portion of the outer element adjacent to the shoulder and at least one of the inner and the outer member comprises an optical member for modifying light emitted from the lighting module.
  • the inner member is movable in an axial direction in relation to the outer member to compress the deformable member between a base surface of the cylindrical portion of the inner member and the shoulder portion of the cylindrical portion of the outer member.
  • the axial direction should be understood as the direction along the cylindrical axis of a cylindrical or circular object.
  • the shoulder portion may reach around the circumference of the cylindrical portion of the outer member or it may be segmented so as to cover portions of the cylindrical portion corresponding to the at least one deformable element.
  • the deformable member may advantageously be an elastically deformable member such that it returns to its original shape when it is no longer compressed.
  • a deformable member may advantageously be used to provide a mounting mechanism allowing easy mounting of an optical element to a lighting module in a constricted space or in situations where a compact luminaire is desirable.
  • the outer member is translated in an axial direction in relation to the inner member, or vice versa, so that the deformable member is compressed between the inner member and the shoulder portion of the outer member and thereby is expanded in a direction perpendicular to the axial direction in order to make contact with the lighting module such that the optical element is releasably connected to the lighting module through the friction between the deformable member and the lighting module.
  • the deformable member may furthermore be fixedly connected to the inner member.
  • the optical element may easily be mounted to a lighting module without the use of tools and without the need for manual access to the lighting module during mounting.
  • the optical element may be mounted to lighting modules having a different configuration as no particular receiving portion is required on the lighting module.
  • the optical element may be suitable to be mounted on lighting modules having somewhat different diameters as the amount of deformation of the deformable member determines the inner diameter of the optical element.
  • the deformable member may be replaceable to allow for further customization of the optical element, offering even greater flexibility in the range of lighting modules on which the optical member may be mounted by providing deformable members having varying inner diameters.
  • the inner member may preferably be movable in an axial direction in relation to the outer member through a rotation of the inner member in relation to the outer member.
  • the cylindrical portion of the inner member facing the lighting module may comprise at least one structure configured to interact with at least one corresponding structure of the lighting module such that the inner member is inhibited from rotating when the outer member is rotated during mounting of the optical element on the lighting module.
  • the interacting structures of the inner member and the lighting module may for example be a protrusion of the inner member interacting with a corresponding recess of the lighting module such that the inner member does not rotate in relation to the lighting module while the optical element is being mounted on the lighting module.
  • the opposite arrangement is equally possible in which a protrusion of the lighting module interacts with a recess of the inner member.
  • Other interlocking configurations known to the person skilled in the art are also possible.
  • the inner member may advantageously comprise screw threads configured to interact with corresponding screw threads in the outer member.
  • the interacting threads are configured to provide a translation of the inner member in an axial direction in relation to the outer member through a rotation of the inner member in relation to the outer member, thus providing a straightforward manner for mounting the optical element on the lighting module.
  • the inner member may be connected to the outer member through a bayonet coupling.
  • At least one of the outer surface of the inner member or the inner surface of the outer member may advantageously comprise flexible grooves configured to interact with the opposing surface when the inner member is arranged within the outer member such that the inner member remains in position in relation to the outer member through a frictional force acting between the flexible grooves and the opposing surface. It may be advantageous to be able to mount the optical element by simply pushing the optical element towards the lighting module. Such a solution may for example be achieved by providing flexible grooves, ridges or other protrusions on at least one of the opposing surfaces which may then interact with the opposing surface so that a frictional force maintains the relative position of the inner and outer members when the optical element is mounted on a lighting module.
  • the opposing surface may also comprise similar flexible groves, or the opposing surface may comprise rigid structures or protrusions. However, the opposing surface may equally well be a flat surface.
  • the optical element may comprise a lever pivotably connected to the outer member and to a connecting member which in turn is pivotably connected to the inner member, the lever being arranged so that a movement of the lever towards the central axis of the cylindrical portion of the outer member translates the inner member in the axial direction in relation to the outer member to compress the deformable member between a base surface of the cylindrical portion of the inner member and the shoulder portion of the cylindrical portion of the outer member.
  • a lever mechanism may advantageously be used to connect the optical element to a lighting module.
  • the hinge between the lever and the connecting member may preferably pass an equilibrium point such that after the equilibrium point has been passed, the lever is forced towards the closed position, thus eliminating the need for a separate locking feature.
  • One or more levers may be arranged so that they can be accessed from the outside of the optical element in order to avoid that any contact is made to sensitive parts of the inside of the optical element such as a reflector during installation.
  • the deformable member may advantageously be a deformable ring arranged along the circumference of the cylindrical portion of the outer element. Furthermore, the deformable ring may be replaceable so that the same optical element may be used together with lighting modules having different diameters by providing a deformable ring having a suitable inner diameter. Moreover, the flexible member may advantageously be an elastomer ring.
  • the optical member may advantageously comprise a reflector.
  • the reflector may for example be a part of the outer element or it may be attached to the outer element.
  • the reflector may be used to alter the shape of light emitted from the light emitting module and by allowing easy replacement of the reflector.
  • a luminaire comprising the aforementioned optical element may readily be modified according to the desired light distribution.
  • the optical member may comprise a diffusing element, a phosphor element and/or a lens.
  • different diffusing elements, phosphor elements and lenses may advantageously be used to controllably achieve desirable color and light distribution properties from a luminaire. Accordingly, easy modification of a luminaire improves flexibility as it is not necessary to change the entire luminaire in order to change the lighting properties.
  • a lighting arrangement comprising a lighting module and an optical element according to any of the previous embodiments.
  • FIG. 1 schematically illustrates an exploded view of an optical element according to an embodiment of the invention.
  • FIGS. 2 a and 2 b schematically illustrate an optical element according to an embodiment of the invention.
  • FIGS. 3 a and 3 b are schematic illustrations of an alternative embodiment of an optical element according to the present invention.
  • optical element 100 In the exploded view in FIG. 1 , an optical element 100 according to an embodiment of the invention is schematically illustrated.
  • the optical element 100 comprises an outer member 102 , an inner member 110 , a deformable ring 108 and an optical member 120 .
  • the outer member 102 in turn comprises a cylindrical portion which is provided with screw threads 106 on the inner surface of the cylindrical portion and a shoulder portion 104 extending towards a central axis of the cylindrical portion.
  • the inner member is provided with corresponding screw threads 112 on its outer surface for engaging the screw threads 106 of the outer member 102 .
  • the deformable ring is arranged between the base of the cylindrical portion of the inner member 110 and the shoulder portion 104 of the outer member 102 .
  • FIG. 1 Also illustrated in FIG. 1 is a lighting module 103 on which the optical element may be mounted.
  • the lighting module 103 may for example be arranged in a lamp holder 101 as illustrated here.
  • one or more light sources 114 such as LEDs are arranged on the lighting module.
  • the lighting module 103 has a protruding structure 116 configured to interact with a recess 118 on the inner member 110 so that the inner member 110 is inhibited from rotating in relation to the outer member 102 when the optical element 100 is being mounted onto the lighting module 103 .
  • the purpose of the optical member 120 is to modify light emitted from the lighting module 103 , and the optical member 120 may for example be a color filter, a diffusing element, a lens, a reflector or any other light modulating structure known by the person skilled in the art.
  • the optical member 120 is pre-attached to the outer member 102 .
  • the optical member 120 may be fixed to or releasably connected to the outer member 102 by any means known by the person skilled in the art which are suitable for the specific application at hand.
  • FIG. 2 a schematically illustrates the optical element 100 and the lighting module 103 arranged in a structure 200 such as a ceiling or a wall.
  • a structure 200 such as a ceiling or a wall.
  • FIG. 2 b illustrates how the optical element 100 is mounted onto the lighting module 103 .
  • the protrusion 116 of the lighting module 103 engages the recession 118 in the inner member 110 so that the inner member 110 is inhibited from rotating in relation to the lighting module 103 .
  • the outer module 102 is rotated in relation to the inner member 110 and in relation to the lighting module 103 .
  • the screw threads 106 and 112 are configured so that the rotation results in a translation of the outer member 102 in relation to the inner member 110 .
  • This translation provides for a compression of the deformable member 108 between the inner member 110 and the shoulder 104 of the outer member 102 such that the deformable member 108 expands in a direction towards the cylindrical axis and comes into contact with the lighting module 103 . Accordingly, the optical element 100 is being kept in place on the lighting module 103 through the frictional force acting between the deformable member 108 and the lighting module 103 .
  • the deformable member 108 may for example be a rubber ring.
  • FIGS. 3 a and 3 b are schematic illustrations showing a cross sectional view of an embodiment of the present invention wherein the optical element 100 comprises a lever 302 pivotably connected to the outer member 304 and to a connecting member 308 which in turn is pivotably connected to the inner member 306 .
  • the lever 302 is arranged so that a movement of the lever 302 towards the cylindrical axis translates the inner member 306 in an axial direction in relation to the outer member 304 in order to compress the deformable member 108 between a base surface of the cylindrical portion of the inner member 306 and the shoulder portion 104 of the cylindrical portion of the outer member 304 .
  • the outer member 304 accordingly comprises openings 310 allowing for a pivoting movement of the lever 302 and the connecting member 308 .
  • the lever 302 is in an open position as illustrated in FIG. 3 a .
  • the inner element 306 is translated via the connecting member 308 so that the deformable member 108 is compressed between the inner element 306 and the shoulder 104 of the outer member 304 and the deformable member 108 is expanded in a direction towards the cylindrical axis so as to come into contact with the lighting module 103 .
  • the hinge between the lever 302 and the connecting member 308 may preferably pass an equilibrium point such that after the equilibrium point has been passed, the lever 302 is forced towards the closed position, thus eliminating the need for a separate locking feature.
  • FIG. 3 b illustrates the case where the optical element 100 is mounted on the lighting module 103 . All parts of the optical element illustrated in FIGS. 3 a and 3 b except the lever mechanism are to be understood as cylindrical corresponding to an optical element similar to the one shown in FIG. 1 .
  • the inner and outer element may be connected through a bayonet coupling.
  • the mounting may be performed through a “push in” mechanism where the inner and outer elements are interacting through flexible ridges so as to remain in a mounted position when the inner element has been depressed in relation to the outer member in order to compress the deformable member.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
US14/377,270 2012-02-09 2013-01-25 Releasable optical element Active 2033-02-06 US9267671B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/377,270 US9267671B2 (en) 2012-02-09 2013-01-25 Releasable optical element

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261596761P 2012-02-09 2012-02-09
PCT/IB2013/050661 WO2013118016A1 (en) 2012-02-09 2013-01-25 Releasable optical element
US14/377,270 US9267671B2 (en) 2012-02-09 2013-01-25 Releasable optical element

Publications (2)

Publication Number Publication Date
US20150369456A1 US20150369456A1 (en) 2015-12-24
US9267671B2 true US9267671B2 (en) 2016-02-23

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US14/377,270 Active 2033-02-06 US9267671B2 (en) 2012-02-09 2013-01-25 Releasable optical element

Country Status (5)

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US (1) US9267671B2 (enrdf_load_stackoverflow)
EP (1) EP2812626B1 (enrdf_load_stackoverflow)
JP (1) JP6216330B2 (enrdf_load_stackoverflow)
CN (1) CN104114933B (enrdf_load_stackoverflow)
WO (1) WO2013118016A1 (enrdf_load_stackoverflow)

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US20130293396A1 (en) 2008-03-15 2013-11-07 James R. Selevan Sequenced guiding systems for vehicles and pedestrians
ES2535586B2 (es) * 2014-04-22 2016-04-27 Fernando RUÍZ DE APODACA CARDEÑOSA Sistema óptico para luminarias y lámparas LED.
US11313546B2 (en) 2014-11-15 2022-04-26 James R. Selevan Sequential and coordinated flashing of electronic roadside flares with active energy conservation
CN105782735B (zh) * 2016-04-03 2018-12-21 杨林 一种单反旋控式led灯
US11725785B2 (en) 2017-02-10 2023-08-15 James R. Selevan Portable electronic flare carrying case and system
US10551014B2 (en) 2017-02-10 2020-02-04 James R. Selevan Portable electronic flare carrying case and system
JP7376475B2 (ja) 2017-07-06 2023-11-08 アール． セレバン、ジェームズ 移動する歩行者または車両の位置の同期信号のためのデバイスおよび方法
CN110594705A (zh) 2018-06-12 2019-12-20 意法半导体(格勒诺布尔2)公司 光源的保护机构
FR3085465B1 (fr) 2018-08-31 2021-05-21 St Microelectronics Grenoble 2 Mecanisme de protection pour source lumineuse
US10865962B2 (en) * 2018-06-12 2020-12-15 Stmicroelectronics (Grenoble 2) Sas Protection mechanism for light source
KR102175783B1 (ko) * 2018-06-12 2020-11-06 popIn가부시키가이샤 천장 배설 기구 지지 부재, 천장 배설 기구 및 천장 배설 기구의 분리 방법
CN210153731U (zh) 2018-06-12 2020-03-17 意法半导体(格勒诺布尔2)公司 安装在基板上的光源的外壳以及电子设备
US10738985B2 (en) * 2018-06-12 2020-08-11 Stmicroelectronics (Research & Development) Limited Housing for light source
WO2023129593A1 (en) 2021-12-29 2023-07-06 Selevan Adam Jordan Vehicular incursion alert systems and methods
EP4476706A1 (en) 2022-02-11 2024-12-18 Daniel Joseph Selevan Networkable devices for internal illumination of traffic cones and other traffic channelizing devices

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US5993029A (en) * 1997-04-07 1999-11-30 Chambers; Charles F. Lighting fixture globe attachment ring
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US20110205742A1 (en) * 2010-02-25 2011-08-25 Mark Timmy Lee Modular led lamps with integrated transformer

Also Published As

Publication number Publication date
JP2015507338A (ja) 2015-03-05
WO2013118016A1 (en) 2013-08-15
CN104114933A (zh) 2014-10-22
EP2812626B1 (en) 2016-05-04
US20150369456A1 (en) 2015-12-24
JP6216330B2 (ja) 2017-10-18
CN104114933B (zh) 2019-05-07
EP2812626A1 (en) 2014-12-17

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Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., NETHERLANDS

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Effective date: 20130218

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